- Add the configuration variable 'print.empty.columns'.
- If this variable is set to 'no', columns with all empty values are not
printed. This variable defaults to 'yes' (thus nothing is changed
by default).
- Updated taskrc.5.in to mention the new variable.
- Added unit tests.
- Added support for more type-specific checks of attribute values.
- Added support for more type-specific attribute rendering.
- Improved generalized methods for checking columns in a report.
- Added unit tests.
- Minor code cleanup.
- Added secret hidden feature for internal testing.
- Added feature #800, adding a new command 'columns' that lists all the columns
available for custom reports, and includes their formatting options (thanks
to T. Charles Yun).
- Refactored column objects to contain a ::validate method, for the
validation of incoming data.
- Context.columns is now a vector of one of each column object,
indexed by attribute name, for validation purposes.
